Air–sea interaction in a coastal zone: The results of the CAPMOS'05 experiment on an oceanographic platform in the Black Sea

Pospelov, M.N.; Biasio, Francesco De; Goryachkin, Yu. N.; Komarova, N. Yu.; Kuźmin, Alexey V.; Pampaloni, P.; Репина, И. А.; Sadovsky, I.N.; Zecchetto, S.

doi:10.1016/j.atmosres.2009.02.002

Cited by 8 publications

(9 citation statements)

References 13 publications

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“…Firstly, it is worth noting that the measured dependences of D C on 10 ( , ), T U ∆ which characterize the sensitivity of the air-sea interaction with respect to the stability of the surface atmospheric layer, are similar to those observed from different sea-mounted observational platforms around the world (e.g., [ 19,24,27 ]). and stably stratified regimes of the vertical turbulent exchange is clearly seen for the weakest winds.…”

Section: Surface Drag Coefficientsmentioning

confidence: 92%

“…The value 0.001 D C = is a commonly accepted value of the surface drag coefficient of the sea [ 24 ]. As the stably-stratified boundary layers are mixed by the mechanically generated turbulence, it is natural to expect that the surface turbulent stress will increase proportionally to 10 .…”

Section: Surface Drag Coefficientsmentioning

confidence: 99%

“…This parameter determines turbulent stress (friction) over flat homogeneous but aerodynamically rough surface. It was studied in numerous works ([ 5,24-26 ], which cover the range of moderate and strong wind speeds 10 U is the wind speed measured at the standard height of 10 m above the mean sea surface). The behaviour of these parameters outside this interval is known much less and a great deal of controversy and confusion does exist ( [ 27,28 ].…”

Section: Surface Drag Coefficientsmentioning

confidence: 99%

“…The surface drag coefficient, , D C was calculated using the observations of the wind speed, 10 , U at 10 m height above the mean sea level, and the measured surface turbulent momentum flux (friction velocity) …”

Section: Surface Drag Coefficientsmentioning

confidence: 99%

“…1) is located offshore in Crimea (near town Katsiveli, 44°23′38″ N, 33°59′15″ E). It was built in 1980 and since then remains a unique research infrastructure to run a variety of meteorological and oceanographic studies in the Black Sea [8][9][10][11]. The platform's location at a distance of approximately 450-600 m from the coast and the water depth at this location (about 30 m) make it a unique observational point to collect the data in the coastal zone in an area that is usually unresolved in remote sensing data sets.…”

Section: Introductionmentioning

confidence: 99%

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Air–sea interaction under low and moderate winds in the Black Sea coastal zone

Репина¹,

Artamonov²,

Chukharev³

et al. 2012

Estonian J. Eng.

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This paper reports the results of field experiments performed at an offshore oceanographic platform in the Black Sea during spring and fall seasons 2005-2011. Observations of the air-sea interaction were made using direct and remote sensing methods in the coastal zone where the interaction is complex and still poorly understood. A specialized research platform, managed by the Marine Hydrophysical Institute (MHI), is placed on the shelf slope approximately 600 m offshore the Crimea coast, Ukraine. The water depth at the site is about 30 m. The experiment program included conventional turbulence measurements with the eddy-covariance method as well as remote radio-polarimetric measurements with a newly developed instrument. The study was concentrated on the air-sea interaction during episodes of weak wind in the atmosphere and upwelling events in the ocean. Analysis of the collected data confirmed significant dependence of the surface drag coefficient on the air-sea temperature difference under weak wind conditions. However, this analysis also demonstrated a new air-sea interaction regime, which is characterized by large quasi-periodic (periods about 3.5 h) turbulence oscillations developing initially in the atmosphere and later (after about 10-12 h) in the sub-surface water layer. The analysis of radiopolarimetric measurements provided the characteristics of the gravity-capillary wave field during these events.

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Section: Surface Drag Coefficientsmentioning

confidence: 92%

Section: Surface Drag Coefficientsmentioning

confidence: 99%

Section: Surface Drag Coefficientsmentioning

confidence: 99%

Section: Surface Drag Coefficientsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Air–sea interaction under low and moderate winds in the Black Sea coastal zone

Репина¹,

Artamonov²,

Chukharev³

et al. 2012

Estonian J. Eng.

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On drag coefficient parameterization with post processed direct fluxes measurements over the ocean

Heo

et al. 2010

Asia-Pacific J Atmos Sci

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This study presents an evaluation of the atmospheric factors influencing the post-processing for fast-response data of horizontal momentum, vertical wind component, temperature, and water vapor to measure turbulent fluxes. They are observed at the Ieodo ocean research station over the Yellow Sea during the period of October 2004 to February 2008. The post process methods employed here are composed of quality control and tilt correction for turbulent flux measurement. The present result of quality control on the fast-response data shows that total removal ratio of the data generally depends on the factors such as a wind speed, relative humidity, significant wave height, visibility, and stability parameter (z/L). Especially, the removal ratio of water vapor data is significantly increased on light wind and strong stability conditions. The results show that the total removal ratio of water vapor data increases when wind speed is less than 3 m s −1 and wave height is less than 1 m. The total removal ratio of water vapor data also increases with the value of the stability parameter. Three different algorithms of tilt correction methods (double rotation, triple rotation, and planar fit) are applied to correct the tilt of the sonic anemometer used in the observation. Friction velocities in near neutral state are greater than friction velocity in other states. Drag coefficients are categorized in terms of stabilities and seasons.

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WITHDRAWN: Non-calibration radiometric method applied to effective emissivity measurement of roughened ocean surface

Sterlyadkin

2018

Advances in Space Research

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Air–sea interaction in a coastal zone: The results of the CAPMOS'05 experiment on an oceanographic platform in the Black Sea

Cited by 8 publications

References 13 publications

Air–sea interaction under low and moderate winds in the Black Sea coastal zone

Air–sea interaction under low and moderate winds in the Black Sea coastal zone

On drag coefficient parameterization with post processed direct fluxes measurements over the ocean

WITHDRAWN: Non-calibration radiometric method applied to effective emissivity measurement of roughened ocean surface

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